Earnings recap · COST
Costco Q4 fiscal 2026 results
What Costco reported for May to Aug 2026, compared with the same quarter a year earlier, from the press release it filed with the SEC.
10-K filed Costco filed its annual report for the fiscal year on Oct 7, 2026. Read the 10-K on SEC EDGAR. The figures below are from the earlier press release; the 10-K has the full statements and notes.
The headline numbers
Costco reported total revenue of $95.7B for Q4 fiscal 2026, compared with $86.2B a year earlier (+11.1%). Net income was $3.0B, compared with $2.6B (+14.9%), and diluted earnings per share were $6.75, compared with $5.87. These are GAAP figures, prepared under the standard accounting rules. How EPS is calculated.
Comparing Q4 fiscal 2026 (May to Aug 2026) with Q4 fiscal 2025 (May to Aug 2025)
Each pair of bars shows both periods. Longer bar, more money. Bars in a group share one scale.
Q4 fiscal 2026Q4 fiscal 2025
Revenue and profit (GAAP)
Per share (GAAP)
| Line | Q4 fiscal 2026 | Q4 fiscal 2025 | Change |
|---|---|---|---|
| Total revenue | $95,723M | $86,156M | +11.1% |
| Operating income | $3,801M | $3,341M | +13.8% |
| Net income | $2,998M | $2,610M | +14.9% |
| Diluted EPS | $6.75 | $5.87 | +15.0% |
Change is worked out by Ticker Sage from the two figures shown. Operating margin, operating income as a share of revenue, was 4.0% compared with 3.9%. What profit margins measure.
What to look for in the 10-K
The press release has the headline tables. The 10-K adds the full statements, the notes and management's discussion, including:
- Segment detail. Revenue and profit by business, and the reasons the company gives for changes.
- Items the adjusted measures leave out. Where those charges sit in the GAAP statements.
- Debt and risk factors. Any changes to borrowings and the risk factors section since the last annual report.
How an 8-K, a 10-Q and a 10-K differ. When the 10-K is filed, the box at the top of this page links to it.
Sources
- Exhibit 99.1: press release and financial tables, filed Sep 24, 2026
- Form 8-K filing index on SEC EDGAR
- Costco Form 10-K for fiscal 2026
Common questions
When did Costco report Q4 fiscal 2026 results?
Costco filed its Q4 fiscal 2026 press release with the SEC on Sep 24, 2026, as Exhibit 99.1 to a Form 8-K under Item 2.02 (Results of Operations and Financial Condition).
What were Costco's revenue and EPS for Q4 fiscal 2026?
Total revenue was $95.7B, compared with $86.2B in Q4 fiscal 2025. Diluted EPS was $6.75, compared with $5.87.
Has Costco filed its 10-K for Q4 fiscal 2026?
Yes. Costco filed the 10-K on Oct 7, 2026.
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Disclosures
- Editor holdings in COST
- The editor holds no position in Costco (COST). As of Oct 25, 2026.
- Compensation
- Nobody paid for this page. No affiliate links.
- Sources
- Costco's own SEC filings, linked next to each number.
- Last updated
- Oct 26, 2026
A summary of a public filing for general education, the same for every reader. Not a recommendation to buy, sell or hold COST. It reports what the company said and doesn't compare the results with forecasts by anyone else.